scholarly journals Daytime perimeter environmental noise in the vicinity of four hospitals in the city of Lima, Peru

Noise Mapping ◽  
2020 ◽  
Vol 7 (1) ◽  
pp. 239-247
Author(s):  
Alberto E. García-Rivero ◽  
Ricardo Ángel Yuli-Posadas ◽  
Warren Reátegui Romero ◽  
Odón Sánchez-Ccoyllo ◽  
Wilfredo Bulege-Gutierrez ◽  
...  

AbstractThe present study is intended to get to know the levels of perimeter diurnal environmental noise of four hospitals in the city of Lima. The measurement mode used at each hospital was A-weighting, with an integration time of five minutes per recording. It was measured in the FAST mode with calibrations made at the beginning and end of the measurement day. Statistical analysis consisted of the mean comparison T test which was applied at all the hospitals considered in the study. At the four hospitals, at all the hours of measurement and both on working days and non-working days (Sunday), LAeq mean values are higher than 83 dBA. On working days, two periods of maximum noise from 08:00 to 10:00 in the morning and from 17:00 to 19:00 in the afternoon coincide with the start and end of working hours. The perimeter diurnal environmental noise levels determined at the vicinity of four hospitals show higher values in all cases to those established by the Peruvian National Environmental Standards for Noise for special protection areas both for working days and for non-working days. Noise that comes from the dense and disorganized traffic of Lima plays a fundamental role in this behaviour.

Author(s):  
Ayokunle Olumuyiwa Omobowale

The world is technologically advancing, but the management of resultant waste, commonly known as e-waste, is also becoming very challenging. Of major concern is the incessant flow of this waste into the developing world where they assume secondhand value in spite of the associated environmental threats. This study adopts the qualitative approach to examine this phenomenon in Nigeria. The study reveals that aside from being cheaper than the new products, second-hand goods are usually preferred to the new products due to the substandard nature of most new electronics largely imported from Asia (especially China). The tag of Tokunbo or ‘imported from the West’ associated with second-hand goods imported from developed countries makes them more preferable to the public relative to new electronics imported from China, disparagingly termed Chinco. Yet both the second-hand electronics that are socially appreciated as Tokunbo and the substandard new electronics imported into Nigeria together render the country a huge recipient of goods that soon collapse and swell the e-waste heap in the country. This situation may be mitigated through strengthening the Standards Organisation of Nigeria and the National Environmental Standards and Regulations Enforcement Agency, and also by sensitizing Nigerians on the dangers inherent in e-wastes.


2021 ◽  
Vol 13 (6) ◽  
pp. 3272
Author(s):  
Paúl Carrión-Mero ◽  
Maribel Aguilar-Aguilar ◽  
Fernando Morante-Carballo ◽  
María José Domínguez-Cuesta ◽  
Cristhian Sánchez-Padilla ◽  
...  

In the last decade, in the mining district of Zaruma-Portovelo, there has been significant land subsidence related to uncontrolled mining activity. The purpose of this work was to carry out a surface and underground geomechanical characterization of a mining sector north of the city of Zaruma that allows the definition of potentially unstable areas susceptible to the mass movement. The methodology used consists of the following stages: (i) compilation of previous studies; (ii) surface and underground characterization of rocky material to establish its susceptibility to mass movement; (iii) interpretation of results; and (iv) proposal of action measures. Among the most relevant results, it stands out that 26.1% of the 23 stations characterized on the surface present conditions that vary from potentially unstable to unstable. In underground galleries, the studied mean values of the 17 stations indicate that the rock has a medium to good quality, representing a medium susceptibility to gallery destabilization. The results obtained for the surface areas (depths up to 50 m, where altered materials predominate) and the underground areas (depths > 50 m, where the alterations are specific) can be used to identify the areas with a more significant potential for instability. For both cases, it has been possible to define specific monitoring, control, and planning actions for sensitive areas.


2021 ◽  
Vol 2 (1) ◽  
pp. 30
Author(s):  
Made Ngurah Partha ◽  
Noor Ellyawati ◽  
Komang Ayu Safitri

This research purposes to determine the income of Grabbike drivers in Samarinda during March 2019 and to compare the income toward the City Minimum Wage (UMK) in 2019. This research also intends to know the average and the percentage of Grabbike driver’s income in Samarinda toward the City Minimum Wage (UMK) in 2019. This is a descriptive quantitative research. The populations in this research are 1200 Samarinda Grabbike drivers in 2019 with 120 respondents. Data collection techniques in this research use questionnaires, interviews and documentation. The data analysis technique uses the net income formula; the average and percentage income. The research data and analysis of the Samarinda Grabbike driver’s income in 2019 includes several indicators; the number of working hours and working days. The research results show that the Samarinda Grabbike driver’s net income in March 2019 is Rp. 200,758,204. The percentage comparison between Samarinda Grabbike Driver’s incomes toward the City Minimum Wage (UMK) shows 24 drivers achieving high-level income or 20%, 65 drivers achieving medium-level income or 54.2% and 31 drivers achieving low-level income or 25.8%. The average income of Samarinda Grabbike drivers in March 2019 is Rp. 1,672,985.


2017 ◽  
Vol 17 (24) ◽  
pp. 15007-15017 ◽  
Author(s):  
Imre Salma ◽  
Veronika Varga ◽  
Zoltán Németh

Abstract. Effects of a new aerosol particle formation (NPF) and particle diameter growth process as a single source of atmospheric particle number concentrations were evaluated and quantified on the basis of experimental data sets obtained from particle number size distribution measurements in the city centre and near-city background of Budapest for 5 years. Nucleation strength factors for a nucleation day (NSFNUC) and for a general day (NSFGEN) were derived separately for seasons and full years. The former characteristic represents the concentration increment of ultrafine (UF) particles specifically on nucleation days with respect to accumulation-mode (regional background) concentrations (particles with equivalent diameters of 100–1000 nm; N100−1000) due solely to the nucleation process. The latter factor expresses the contribution of nucleation to particle numbers on general days; thus, it represents a longer time interval such as season or year. The nucleation source had the largest effect on the concentrations around noon and early afternoon, as expected. During this time interval, it became the major source of particles in the near-city background. Nucleation increased the daily mean concentrations on nucleation days by mean factors of 2.3 and 1.58 in the near-city background and city centre, respectively. Its effect was largest in winter, which was explained by the substantially lower N100−1000 levels on nucleation days than those on non-nucleation days. On an annual timescale, 37 % of the UF particles were generated by nucleation in the near-city background, while NPF produced 13 % of UF particles in the city centre. The differences among the annual mean values, and among the corresponding seasonal mean values, were likely caused by the variability in controlling factors from year to year. The values obtained represent the lower limits of the contributions. The shares determined imply that NPF is a non-negligible or substantial source of particles in near-city background environments and even in city centres, where the vehicular road emissions usually prevail. Atmospheric residence time of nucleation-mode particles was assessed by a decay curve analysis, and a mean of 02:30 was obtained. The present study suggests that the health-related consequences of the atmospheric NPF and growth process in cities should also be considered in addition to its urban climate implications.


1982 ◽  
Vol 60 (8) ◽  
pp. 1101-1107
Author(s):  
C. V. Mathai ◽  
A. W. Harrison

As part of an ongoing general research program on the effects of atmospheric aerosols on visibility and its dependence on aerosol size distributions in Calgary, this paper presents the results of a comparative study of particle size distribution and visibility in residential (NW) and industrial (SE) sections of the city using a mobile laboratory. The study was conducted in the period October–December, 1979. An active scattering aerosol spectrometer measured the size distributions and the corresponding visibilities were deduced from scattering coefficients measured with an integrating nephelometer.The results of this transit study show significantly higher suspended particle concentrations and reduced visibilities in the SE than in the NW. The mean values of the visibilities are 44 and 97 km for the SE and the NW respectively. The exponent of R (particle radius) in the power law aerosol size distribution has a mean value of −3.36 ± 0.24 in the SE compared with the corresponding value of −3.89 ± 0.39 for the NW. These results arc in good agreement with the observations of Alberta Environment; however, they are in contradiction with a recent report published by the City of Calgary.


Law and World ◽  
2021 ◽  
Vol 7 (5) ◽  
pp. 47-59

This paper examines various laws governing telecommunication installations in Nigeria with a view to addressing the perceived shortcomings in the laws. While the National Environmental Standards Regulatory and Enforcement Agency Act (NESREA Act) and the National Communications Commission (NCC Act) have been enacted to solve the problems associated with the effects of telecommunication mast installation in public places, the outcome of these laws seem inadequate for failure to provide effective means of enforcing same. The study considered the provisions of NESREA Act which is the principal Law enacted for ensuring that environ- mental standards are maintained and protected in Nigeria and the provisions of NCC Act which is the law that establishes the principal body which regulates telecommunication installations in Nigeria as well as other legislations. While NESREA in its Regulation provided for a setback of 10 metres, the NCC Act provided for a setback of 5 metres, which often conflicts and put victims at disadvantage and also conflict between the two regulatory bodies. It was observed that serious environmental hazards are linked to installation of tele- communication masts within/close to residential premises. Among these are leukemia, cancer, cracks on the buildings, pollution, such as water, land and air. The problems also include telecommunication masts falling on buildings and sometimes death due to sub- standard materials used in the installation as against the stated standard by the controlling regulatory bodies.


2021 ◽  
Vol 3 (2) ◽  
pp. 100-109
Author(s):  
Angga Sopian Munawar ◽  
Wildan Wiguna ◽  
Tika Adilah M

Perkembangan teknologi saat ini semakin pesat, teknologi bereperan baik sebagai media interaksi sosial, sarana edukasi, maupun sarana hiburan. Dengan menerapkan teknologi dalam kehidupan sehari-hari, diharapkan dapat membantu dan mempermudah pekerjaan. Salah satu bentuk kegiatan adalah pendakian dan petulangan, yaitu sebuah kegiatan dengan mengkombinasikan olahraga dan rekreasi yang sangat digemari oleh kalangan muda. Komunitas Pendaki Gunung Bandung (KPGB) merupakan Komunitas dengan kegiatan pendakian atau petualangan yang berperan sebagai media komunikasi dan informasi antar pegiat alam. Komunitas ini diharapkan menjadi jalur komunikasi terjalinya silaturahmi untuk membentuk kokoh rasa kekeluargaan antar sesama pendaki khususnya di Kota Bandung. Kesibukan dan padatnya jam kerja menyebabkan para anggota kesulitan dalam mengatur jadwal untuk melakukan aktivitas pendakian. Banyaknya rintangan dan tingkat kesulitan di medan pendakian, membuat banyak orang merasa takut untuk mendaki. Para pendaki yang mengalami kecelakaan dan hilang, bahkan meninggal dunia, menambah rasa takut bagi orang-orang yang ingin melakukan pendakian. Dari permasalahan yang ada perlu adanya gambaran tentang bagaimana menyelesaikan masalah ketika banyaknya aktivitas dari semua anggota yang tidak dapat melakukan pendakian. Maka aplikasi game yang bertemakan petualangan pendakian ini, dibentuk untuk memenuhi kepuasan para anggota Komunitas Pendaki Gunung Bandung, dengan pemrograman Cocos 2d-x berbasis game engine Android menggunakan smartphone yang menghasilkan game petulangan pendakian yang berkarakter 2D (dua dimensi). Aplikasi ini dirancang dengan fitur yang sederhana, oleh karena itu pengguna dapat memainkan game petualangan ini dengan nyaman. Terdapat pula fitur yang akan menghubungkan langsung pengguna dengan website KPGB, yang didalamnya terdapat informasi mengenai perlengkapan mendaki. Aplikasi ini diharapkan dapat memberikan kesenangan bagi anggota Komunitas Pendaki Gunung Bandung yang tidak bisa melakukan aktivitas berpetualang atau mendaki secara langsung.   The development of technology is currently increasingly rapid, technology plays a role both as a medium of social interaction, a means of education, and a means of entertainment. By applying technology in everyday life, it is hoped that it can help and make work easier. One form of activity is climbing and adventure, which is an activity that combines sports and recreation which is very popular with young people. The Bandung Mountaineering Community (KPGB) is a community with climbing or adventure activities that act as a medium of communication and information between nature activists. This community is expected to be a communication line for establishing friendships to form a strong sense of kinship between fellow climbers, especially in the city of Bandung. Busy and busy working hours cause the members to find it difficult to arrange a schedule for climbing activities. The number of obstacles and levels of difficulty in the climbing field, makes many people feel afraid to climb. The climbers who had accidents and disappeared, and even died, added to the fear of those who wanted to climb. From the existing problems, it is necessary to have an idea of how to solve the problem when there are many activities from all members who cannot climb. So this game application with the theme of climbing adventure, was formed to meet the satisfaction of members of the Bandung Mountaineering Community, with Cocos 2d-x programming based on the Android game engine using a smartphone that produces climbing adventure games with 2D (two-dimensional) characters. This application is designed with simple features, therefore users can play this adventure game comfortably. There is also a feature that will connect users directly to the KPGB website, in which there is information about climbing equipment. This application is expected to provide pleasure for members of the Bandung Mountaineering Community who cannot carry out adventure or climbing activities directly.  


Author(s):  
Gabriela Torres-Hernández ◽  
Patricio García-Espinosa ◽  
Edgar Botello-Hernández ◽  
Diego Ortega-Moreno

During February  2021, a protest was organized by Mexican medical students through social media. About 200 interns, social service physicians and physicians protested peacefully in front of the city hall of Monterrey, Nuevo Leon, the capital of Mexico's second largest metropolitan area. Due to the current contingency situation, it was requested to attend with face shield and masks. The reason for the protest was to raise their voice due to the precarious situation where social service physicians are sent to rural areas of the country in which they have all the obligations of workers but without belonging to the working class - lacking the the benefits of this same as a living wage or fair working hours. The protesters were in limbo between student and worker. The protest also demanded justice for the sensitive death of young doctors due to malpractice situations of the Mexican authorities. We believe that a total reform of the social service in medicine is necessary. It is the responsibility of the authorities to cover the rural areas with permanently trained doctors without depending on recently graduated doctors. It is always important to assert our fundamental rights, including the right to protest in a peaceful manner.


2018 ◽  
Vol 63 ◽  
pp. 309-319 ◽  
Author(s):  
Raymond Lagonigro ◽  
Joan Carles Martori ◽  
Philippe Apparicio
Keyword(s):  

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